540 citations · 2.4k across the 44 of their papers we have counts for
3 papers · 1 filter
Radiation Exposure from the Dark
Florian Niedermann, Martin S. Sloth
We explore the possibility that exotic forms of dark matter could expose humans on Earth or on prolonged space travel to a significant radiation dose. The radiation exposure from d…
Confronting Cold New Early Dark Energy and its Equation of State with Updated CMB, Supernovae, and BAO Data
Aleksandr Chatrchyan, Florian Niedermann, Vivian Poulin +1
Cold New Early Dark Energy (Cold NEDE) addresses the Hubble tension through a triggered vacuum phase transition in the dark sector. In this paper, we constrain a phenomenological f…
Hot New Early Dark Energy bridging cosmic gaps: Supercooled phase transition reconciles (stepped) dark radiation solutions to the Hubble tension with BBN
Mathias Garny, Florian Niedermann, Henrique Rubira +1
We propose a simple model that can alleviate the tension while remaining consistent with big bang nucleosynthesis (BBN). It is based on a dark sector described by a standard…